If needed, cook and dice the chicken and cook the quinoa, then let both cool. Short on time? Use rotisserie chicken and pre-cooked quinoa.
Add the dressing ingredients to the bottom of each meal prep container and whisk together.
Divide the quinoa (about 1/2 cup) into each container, right on top of the dressing.
Add the chickpeas (about 1/4 cup) to each container.
Divide the diced chicken and crumbled feta among the containers.
Add the cucumber and cherry tomatoes.
Top each container with shredded lettuce, keeping it up away from the dressing so it stays crisp.
Seal and refrigerate for up to 4 days. When ready to eat, shake or toss so the dressing coats everything.